spc700_accurate_cycles.h

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// spc700_accurate_cycles.h - Cycle counts based on https://snes.nesdev.org/wiki/SPC-700_instruction_set
 
#pragma once
 
#include <cstdint>
 
// Base cycle counts for each SPC700 opcode.
// For branching instructions, this is the cost of NOT taking the branch.
// Extra cycles for taken branches are added during execution.
static const uint8_t spc700_accurate_cycles[256] = {
    2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 6, 8, // 0x00
    2, 4, 6, 5, 2, 5, 5, 6, 5, 5, 6, 5, 2, 2, 4, 6, // 0x10
    2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 5, 4, // 0x20
    2, 4, 6, 5, 2, 5, 5, 6, 5, 5, 6, 5, 2, 2, 3, 8, // 0x30
    2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 6, 6, // 0x40
    2, 4, 6, 5, 2, 5, 5, 6, 4, 5, 5, 5, 2, 2, 4, 3, // 0x50
    2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 5, 5, // 0x60
    2, 4, 6, 5, 2, 5, 5, 6, 5, 6, 5, 5, 2, 2, 6, 6, // 0x70
    2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 4, 8, // 0x80
    2, 4, 6, 5, 2, 5, 5, 6, 5, 5, 5, 5, 2, 2, 12, 5, // 0x90
    3, 8, 4, 5, 3, 4, 3, 6, 2, 5, 4, 4, 5, 4, 4, 5, // 0xA0
    2, 4, 6, 5, 2, 5, 5, 6, 5, 5, 6, 5, 2, 2, 3, 4, // 0xB0
    3, 8, 4, 5, 4, 5, 4, 7, 2, 5, 6, 4, 5, 4, 9, 8, // 0xC0
    2, 4, 6, 5, 5, 6, 6, 7, 4, 5, 5, 5, 2, 2, 4, 3, // 0xD0
    2, 8, 4, 5, 3, 4, 3, 6, 2, 4, 5, 4, 5, 4, 3, 6, // 0xE0
    2, 4, 6, 5, 4, 5, 5, 6, 3, 5, 4, 5, 2, 2, 4, 2  // 0xF0
};